Leonardo da Vinci is considered by many to be one of the greatest artists who ever lived. Yet his reputation rests on only a handful of pictures - including the world's most famous painting, the Mona Lisa. Fiona Bruce attempts to uncover the story of this enigmatic genius. She begins her journey in Leonardo's birthplace, the small town of Vinci in Tuscany, and follows in his footsteps to Florence, where he was apprenticed to the master painter Verrocchio. In Paris, Fiona is given a private view of the Mona Lisa and learns the secret of how Leonardo achieved the extraordinary effect of the picture on generations of art lovers: by meticulously applying layer upon layer of paint thinly mixed with oil to produce a smoky, mysterious finish. And in New York, she is given an exclusive preview of a sensational discovery: a new Leonardo, thought to have disappeared centuries ago, Salvator Mundi, The Savior of the World.